Present perfect continuous

The present perfect continuous = have / has + been + -ing. Been stays the same; only have/has changes with the subject.

💡You need all three parts: have/has + been + -ing. Typical slips: leaving out been (I have working), writing being instead of been (has being working), or forgetting -ing (has been learn).

1. An activity that started in the past and is still going on — often with How long…?, for, since, all day

• It's been raining since lunchtime.

• How long have you been learning English?

• Nam has been working for the same company since 2019.

2. An activity that has just stopped, with a result you can still see

• Your eyes are red. Have you been crying?

• Sorry I'm so sweaty — I've been running.

3. Something you have been doing again and again recently — with lately, recently, these days

• I've been going to the gym a lot lately.

• Linh hasn't been sleeping well recently.

The continuous form focuses on the activity and how long it has lasted; the simple form focuses on the result — what is done or achieved.

• I've been reading this book for a week. I'm on page 90.

  not finished

• I've read three books this month.

  a number — finished

• She's been writing emails all morning.

• She's written twelve emails this morning.

💡When you count how much / how many (three books, twelve emails, How many…?) → usually the simple form. When you say how long (for two hours, all day, How long…?) → usually the continuous form.

State verbs such as know, like, want, believe, belong, have (= own) are not normally used in continuous forms, so use the present perfect simple even when you say how long.

• I've known Hoa since we were at school.

  not: have been knowing

• How long have you had your cat?

  have = own

With live, work, study, teach, both forms are correct and mean almost the same. The continuous form can sound more temporary, the simple form more permanent.

• We've been living with my parents since March.

  temporary

• My grandparents have lived in this village all their lives.

  permanent

The present continuous only says something is happening. Once you add how long (for, since, How long…?), you need the present perfect continuous.

• We're waiting for the bus.

• We've been waiting for the bus for forty minutes!

  not: We are waiting … for forty minutes

💡Many learners say “I'm learning English for two years” because the action is still happening. But once you say how long, English needs I've been learning English for two years.

• ✗It is raining since this morning.

  ✓It has been raining since this morning.

  since → use a perfect tense.

• ✗I have been work here since 2020.

  ✓I have been working here since 2020.

  been + -ing.

• ✗He has being working on this project since March.

  ✓He has been working on this project since March.

  have/has + been, not being.

• ✗I have been studying for this exam since three weeks.

  ✓I have been studying for this exam for three weeks.

  three weeks is a length of time → for.

• ✗I've been knowing her for years.

  ✓I've known her for years.

  know is a state verb → simple form.

• ✗Did you been exercising lately?

  ✓Have you been exercising lately?

  The question puts have/has before the subject — no did.